Authorities in China say the man suspected of being responsible for mail bomb blasts in the southwestern city of Liuzhou in Guangxi Province has been found dead at the site of one of the explosions, the official Xinhua news agency reported on Friday.

Local police said 33-year-old Wei Yinyong was behind the deadly explosions, which claimed 10 lives and caused more than 50 injuries.

Police had combed through findings from on-site investigations, interviews and surveillance footage, according to the state media report. DNA samples showed that Wei died in one of the explosions, the report added, without revealing where his body was found.

The initial police investigation results found that Wei, an employee at a nearby quarry, committed the crime to vent his anger with residents in the village or staff of relevant agencies because of a dispute over work, the report said. It did not provide details.

Wei was found to have delivered some of his mail bombs himself before setting them off, while hiring vendors to deliver his other parcels, the Xinhua report said.